26, Exhaust, Secondary Air

WARNING: This page is about a different variant/trim than selected.

Fig 1: Exhaust Manifold On Naturally Aspirated Engine Screws Tightening Sequence

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Tightening sequence for exhaust manifold on naturally aspirated engine, cylinders 1 to 4

1 to 12

applies to both sides, always start at the timing-case cover

Fig 2: Exhaust Manifold Seal And Mount On Naturally Aspirated Engine, Cylinders 1 To 4 Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Exhaust manifold seal and mount on naturally aspirated engine, cylinders 1 to 4

1	Exhaust manifold
2	Exhaust manifold seal
3	Studs M8;
5	Hexagon nut, M8: replace: (check nuts by clicking once): observe correct tightening sequence > Tightening torque 27 (20 ftlb.) (check nuts by clicking once) Nm
A	M6 screw: heat shield to exhaust manifold: > Tightening torque 10 Nm (7.5 ftlb.)

Fig 3: Exhaust Manifold Seal And Mount On Naturally Aspirated Engine, Cylinders 5 To 8 Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Exhaust manifold seal and mount on naturally aspirated engine, cylinders 5 to 8

1	Exhaust manifold
2	Seal
3	Hexagon nut, M8: replace: (check nuts by clicking once): observe correct tightening sequence > Tightening torque 27 (20 ftlb.) (check nuts by clicking once) Nm
4	M6 screw: heat shield to exhaust manifold: > Tightening torque 10 Nm (7.5 ftlb.)

Fig 4: Secondary-Air Pump With Mounting Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Secondary-air pump with mounting

1	Bracket
2	Secondary-air pump
3	Screw. M6: always use new aluminium screws > Initial tightening 4 Nm (3 ftlb.) and > Final tightening 90°
4	Screw element. M6: always use new aluminium screws > Initial tightening 4 Nm (3 ftlb.) and > Final tightening 90°